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<div class="subTitle">com.drew.imaging</div>
<h2 title="Class ImageMetadataReader" class="title">Class ImageMetadataReader</h2>
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<pre>public class <span class="strong">ImageMetadataReader</span>
extends java.lang.Object</pre>
<div class="block">Obtains metadata from all supported file formats, including JPEG, RAW (NEF/CRw/CR2) and TIFF.
 If the caller knows their file to be of a particular type, they may prefer to use the dedicated MetadataReader
 directly (<code>JpegMetadataReader</code> for Jpeg files, or <code>TiffMetadataReader</code> for TIFF and RAW files).
 The dedicated readers offer a very slight performance improvement, though for most scenarios it is simpler,
 more convenient and more robust to use this class.</div>
<dl><dt><span class="strong">Author:</span></dt>
  <dd>Drew Noakes http://drewnoakes.com</dd></dl>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../com/drew/imaging/ImageMetadataReader.html#main(java.lang.String[])">main</a></strong>(java.lang.String[]&nbsp;args)</code>
<div class="block">An application entry point.</div>
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<td class="colFirst"><code>static <a href="../../../com/drew/metadata/Metadata.html" title="class in com.drew.metadata">Metadata</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/drew/imaging/ImageMetadataReader.html#readMetadata(java.io.BufferedInputStream, boolean)">readMetadata</a></strong>(java.io.BufferedInputStream&nbsp;inputStream,
            boolean&nbsp;waitForBytes)</code>
<div class="block">Reads metadata from an input stream.</div>
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<td class="colFirst"><code>static <a href="../../../com/drew/metadata/Metadata.html" title="class in com.drew.metadata">Metadata</a></code></td>
<td class="colLast"><code><strong><a href="../../../com/drew/imaging/ImageMetadataReader.html#readMetadata(java.io.File)">readMetadata</a></strong>(java.io.File&nbsp;file)</code>
<div class="block">Reads metadata from a file.</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>readMetadata</h4>
<pre>public static&nbsp;<a href="../../../com/drew/metadata/Metadata.html" title="class in com.drew.metadata">Metadata</a>&nbsp;readMetadata(java.io.BufferedInputStream&nbsp;inputStream,
                    boolean&nbsp;waitForBytes)
                             throws <a href="../../../com/drew/imaging/ImageProcessingException.html" title="class in com.drew.imaging">ImageProcessingException</a>,
                                    java.io.IOException</pre>
<div class="block">Reads metadata from an input stream.  The file inputStream examined to determine its type and consequently the
 appropriate method to extract the data, though this inputStream transparent to the caller.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>inputStream</code> - a stream from which the image data may be read.  The stream must be positioned at the
                    beginning of the image data.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a populated Metadata object containing directories of tags with values and any processing errors.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../com/drew/imaging/ImageProcessingException.html" title="class in com.drew.imaging">ImageProcessingException</a></code> - for general processing errors.</dd>
<dd><code>java.io.IOException</code></dd></dl>
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<h4>readMetadata</h4>
<pre>public static&nbsp;<a href="../../../com/drew/metadata/Metadata.html" title="class in com.drew.metadata">Metadata</a>&nbsp;readMetadata(java.io.File&nbsp;file)
                             throws <a href="../../../com/drew/imaging/ImageProcessingException.html" title="class in com.drew.imaging">ImageProcessingException</a>,
                                    java.io.IOException</pre>
<div class="block">Reads metadata from a file.  The file is examined to determine its type and consequently the appropriate
 method to extract the data, though this is transparent to the caller.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>file</code> - a file from which the image data may be read.</dd>
<dt><span class="strong">Returns:</span></dt><dd>a populated Metadata object containing directories of tags with values and any processing errors.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../com/drew/imaging/ImageProcessingException.html" title="class in com.drew.imaging">ImageProcessingException</a></code> - for general processing errors.</dd>
<dd><code>java.io.IOException</code></dd></dl>
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<h4>main</h4>
<pre>public static&nbsp;void&nbsp;main(java.lang.String[]&nbsp;args)
                 throws <a href="../../../com/drew/metadata/MetadataException.html" title="class in com.drew.metadata">MetadataException</a>,
                        java.io.IOException</pre>
<div class="block">An application entry point.  Takes the name of one or more files as arguments and prints the contents of all
 metadata directories to System.out.  If <code>/thumb</code> is passed, then any thumbnail data will be
 written to a file with name of the input file having '.thumb.jpg' appended.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>args</code> - the command line arguments</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../com/drew/metadata/MetadataException.html" title="class in com.drew.metadata">MetadataException</a></code></dd>
<dd><code>java.io.IOException</code></dd></dl>
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